Merck
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32319

Sigma-Aldrich

Diethylenetriaminepentaacetic acid

for complexometry, ≥99.0%

Synonym(s):
DETAPAC, (Carboxymethylimino)bis(ethylenenitrilo)tetraacetic acid, Pentetic acid, Penta(carboxymethyl)diethylenetriamine, DTPA, N,N-Bis(2-[bis(carboxymethyl)amino]ethyl)glycine
Linear Formula:
[(HOOCCH2)2NCH2CH2]2NCH2COOH
CAS Number:
Molecular Weight:
393.35
Beilstein:
1810219
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

for complexometry

assay

≥99.0% (KT)
≥99.0%

ign. residue

≤0.05% (as SO4)

loss

≤0.1% loss on drying, 20°C, HV

mp

219-220 °C (lit.)

anion traces

chloride (Cl-): ≤1000 mg/kg
sulfate (SO42-): ≤200 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤10 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CCN(CC(O)=O)CC(O)=O

InChI

1S/C14H23N3O10/c18-10(19)5-15(1-3-16(6-11(20)21)7-12(22)23)2-4-17(8-13(24)25)9-14(26)27/h1-9H2,(H,18,19)(H,20,21)(H,22,23)(H,24,25)(H,26,27)

InChI key

QPCDCPDFJACHGM-UHFFFAOYSA-N

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General description

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Other Notes

Complexing agent for the chelation of iron in solution

Pictograms

Exclamation markHealth hazard

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 2 - STOT RE 2 Inhalation

Target Organs

Respiratory Tract

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

392.0 °F - closed cup

Flash Point(C)

200 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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